Ben Lerner
Senior Machine Learning Engineer at Meta
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolBen Lerner is a Senior Machine Learning Engineer in New York with 11 years of experience building production ML systems across consumer tech, logistics, and automotive telematics. He has driven large-scale data pipelines and feature engineering at Snap and DoorDash, built a 4x-faster feature store and fleet risk models at Viaduct that surfaced recalls months before OEMs, and now focuses on personalization at Meta AI. Comfortable across Spark, Airflow, Beam, Postgres and experimentation backends, he combines strong software engineering rigor with applied ML evaluation and monitoring. He has research-oriented interests in alignment and sparse autoencoders, having participated in AI safety work and published with Apollo Research. A founder-level engineer (co-founder of Espresso Computing) who started in product-focused roles at Columbia and startups, he blends hands-on implementation with systems thinking and measurable business impact.
11 years of coding experience
8 years of employment as a software developer
Bachelor's Degree Computer Science, Bachelor's Degree Computer Science at Columbia UniversityAlignment, Alignment at AI Safety Fundamentals
English, Japanese
Stackoverflow
1,318reputation
28kreached
41answers
6questions
Github Skills (36)
monitoring10
debugging10
kubernetes10
expressjs10
aggregator10
graphite10
http-header10
proxy10
websocket10
sidecar10
paxos10
prometheus10
promql10
monorepo10
ssl9
Programming languages (4)
Github contributions (5)
ben-lerner/bash_scripts
Aug 2017 - Jun 2023
Contributions:45 pushes in 5 years 10 months
ben-lerner/emacs
Nov 2015 - Jan 2017
Contributions:127 pushes, 1 branch in 1 year 2 months
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